It is great to see evidence of international treaties having a beneficial effect on the earth’s atmosphere. We should use this achievement as proof that the international community can work together to combat climate change.

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The Antarctic ozone hole would have been 40% bigger by now if ozone-depleting chemicals had not been banned in the 1980s, according to research.
Models also show that at certain times, a large hole would have opened up at the other end of the globe.
The Arctic hole would have been large enough to affect northern Europe, including the UK, scientists say.